短语词组短語mold and core sand 型芯砂mold and core drying 砂型和型芯烘乾mold or core 鑄型shell mold and core 殼型殼芯mold and core 範和芯cluster bottom mold runner core 澆道甎Japanese mold core reflector 繙譯公司模芯反光片 返回 mold core